ChemElectroChem最新文献

Front Cover: The Design of Spin Catalysts: Breakthroughs toward Efficient Energy Conversion (ChemElectroChem 14/2025) 封面：自旋催化剂的设计：高效能量转换的突破（ChemElectroChem 14/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-11 DOI: 10.1002/celc.70018

Yantao Yang, Yufeng Li, Baipeng Yin, Chuang Zhang

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Cover Feature: An Alternative Mechanistic Paradigm for the Electrochemical C-Terminal Decarboxylation of Peptides (ChemElectroChem 14/2025) 封面特写：多肽电化学c端脱羧的另一种机制范式（ChemElectroChem 14/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-11 DOI: 10.1002/celc.70019

Adam J. Sowers, Kevin D. Moeller, Kim S. Halskov

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Front Cover: Enhanced Reversibility of Li-Rich Binary Oxide Cathodes through Synergistic Interfacial Regulation for Improved Charge Transfer Kinetics at High Depth of Charge/Discharge (ChemElectroChem 13/2025) 封面：通过协同界面调节提高高深度充放电时电荷转移动力学的富锂二元氧化物阴极的可逆性（ChemElectroChem 13/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-04 DOI: 10.1002/celc.70009

Qing Zhang, Jiaoyang Cheng, Jinxin Cao, Fang Lian

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Cover Feature: Enhancing the Activity and Stability of IrO2 for the Oxygen Evolution Reaction over a Wide pH Range using Electrodeposited BaO2 (ChemElectroChem 13/2025) 封面特征：利用电沉积BaO2提高IrO2在大pH范围内析氧反应的活性和稳定性（ChemElectroChem 13/2025）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-07-04 DOI: 10.1002/celc.70010

Thi Hong Nga Ngo (Sarah Ngo), James D. Riches, Jonathan Love, Anthony P. O'Mullane

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Development of a New Generation MWCNT/TiO2/TiO2-Based Voltammetric Sensors for the Detection of Daptomycin in Soil and Different Water Samples 基于MWCNT/TiO2/TiO2的新一代土壤和不同水样中达托霉素伏安传感器的研制

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-06-20 DOI: 10.1002/celc.202400675

Nida Aydogdu Ozdogan, Ersin Demir, Sibel A. Ozkan

{"title":"Development of a New Generation MWCNT/TiO2/TiO2-Based Voltammetric Sensors for the Detection of Daptomycin in Soil and Different Water Samples","authors":"Nida Aydogdu Ozdogan, Ersin Demir, Sibel A. Ozkan","doi":"10.1002/celc.202400675","DOIUrl":"https://doi.org/10.1002/celc.202400675","url":null,"abstract":"Daptomycin is a pioneer cyclic lipopeptide antibiotic introduced for clinical use. It is effective against gram-positive bacteria, but its widespread use raises the problem of pollution in environmental samples. For this purpose, rapid, sensitive, selective, and applicable analytical methods for daptomycin in these environmental matrices are needed. In this work, electrochemical method was advanced with a glassy carbon electrode (GCE) and newly developed multi-walled carbon nanotubes/titanium dioxide nanoparticles/titanium dioxide nanoparticles modified GCE (MWCNT/TiO2/TiO2/GCE) for the daptomycin detection using adsorptive stripping differential pulse voltammetry. The surface characterization of the supported sensor was researched. Under optimized conditions, the linear range for the unmodified electrode and MWCNT/TiO2/TiO2/GCE was 0.2–1.0 μM and 0.06–5.0 μM, with detection limits of 0.086 μM and 0.001 μM. The selectivity of the proposed sensor was investigated for organic and inorganic compounds that could affect the detection of daptomycin by interference studies. The accuracy of the methods proposed for determining daptomycin in different environmental (soil, natural spring, and tap water) samples was calculated as % recovery in recovery studies. A novel, fast, reliable, cost-effective, eco-friendly, sensitive, and highly selective sensor was developed for the first time to determine daptomycin in environmental samples, introducing a new analytical method to the literature.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 14","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400675","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Design Principles of Nitrogen-Doped Carbon Catalysts for Oxygen Reduction Reaction 氧还原反应中氮掺杂碳催化剂的设计原理

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-06-20 DOI: 10.1002/celc.202500089

Kenji Hayashida, Bang Lu, Satoru Takakusagi, Junji Nakamura, Kotaro Takeyasu

{"title":"Design Principles of Nitrogen-Doped Carbon Catalysts for Oxygen Reduction Reaction","authors":"Kenji Hayashida, Bang Lu, Satoru Takakusagi, Junji Nakamura, Kotaro Takeyasu","doi":"10.1002/celc.202500089","DOIUrl":"https://doi.org/10.1002/celc.202500089","url":null,"abstract":"Nitrogen-doped carbon catalysts are attracting significant attention as alternative electrocatalysts to platinum owing to their high activity and durability in fuel cells’ oxygen reduction reaction (ORR), resource availability, and low catalyst cost. Pyridinic nitrogen forms the active site of the ORR and that the reduction of pyridinium ions is discovered and adsorption of molecular oxygen are coupled with a unique reaction mechanism. The deactivation of nitrogen-doped carbon catalysts in acid electrolytes is attributed to the protonation of pyridinic nitrogen and the associated hydration is reported. This concept is demonstrated by the increased activity of nitrogen-doped graphene catalysts, whose hydrophobicity is enhanced by the 3D structure. To further enhance the catalytic activity of nitrogen-doped carbon catalysts, the electronic configuration of the active sites, particularly the degree of electron localization and spin, plays a crucial role. As an example, the introduction of active sites through five-membered ring structures is presented, along with their characterization by X-ray absorption spectroscopy.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 14","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500089","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Scaling CO Electrolyzers for Carbon-Neutral Chemical Synthesis 用于碳中性化学合成的CO电解槽

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-06-20 DOI: 10.1002/celc.202500043

Wenzhi Teng, Prof. Yuhang Wang

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Stability Investigation on NiFeOx Electrocatalysts for Oxygen Evolution During on and off Cycles in Harsh Alkaline Conditions 碱性条件下NiFeOx析氧电催化剂开、关循环稳定性研究

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-06-20 DOI: 10.1002/celc.202500081

Reona Suzuki, Keisuke Obata, Yutaka Sasaki, Kiyohiro Adachi, Kazuhiro Takanabe

{"title":"Stability Investigation on NiFeOx Electrocatalysts for Oxygen Evolution During on and off Cycles in Harsh Alkaline Conditions","authors":"Reona Suzuki, Keisuke Obata, Yutaka Sasaki, Kiyohiro Adachi, Kazuhiro Takanabe","doi":"10.1002/celc.202500081","DOIUrl":"https://doi.org/10.1002/celc.202500081","url":null,"abstract":"Water electrolysis powered by renewable energy sources is a mature and practical technique to produce green hydrogen. Its production cost is heavily influenced by efficiency and durability, with a particular concern being the durability of anodes for oxygen evolution reaction (OER) in highly oxidative and acidic/alkaline environments at elevated temperatures. Durability during intermittent operations with renewable sources, factoring in on/off cycling, is also a consideration. This study investigates the durability of NiFeOx, one of the most active electrocatalysts in alkaline conditions, under various conditions including industrially relevant conditions: 7 M KOH at 80 °C and 600 mA cm−2. The results show that on/off operations with extensive potential variation caused severe degradations compared to constant OER operations. However, stability improves slightly with the addition of saturated Fe3+ ions into the electrolyte, preventing Fe leaching. By dissecting the degradation mechanism step-by-step, this study illuminates the limitations and assists in creating strategies for highly durable electrolysis systems.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 14","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the Effects of Ethylene as an Airborne Contaminant in Proton Exchange Membrane Fuel Cells and its Mitigation via Filtration 了解乙烯作为空气污染物在质子交换膜燃料电池中的影响及其通过过滤的缓解

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-06-17 DOI: 10.1002/celc.202500082

Mahmoud Amirsalehi, Connor Miles, Justin Jordan, Karen E. Swider-Lyons, William Earl Mustain

{"title":"Understanding the Effects of Ethylene as an Airborne Contaminant in Proton Exchange Membrane Fuel Cells and its Mitigation via Filtration","authors":"Mahmoud Amirsalehi, Connor Miles, Justin Jordan, Karen E. Swider-Lyons, William Earl Mustain","doi":"10.1002/celc.202500082","DOIUrl":"https://doi.org/10.1002/celc.202500082","url":null,"abstract":"Proton exchange membrane fuel cells (PEMFCs) are a promising clean energy technology, but their performance and durability are highly sensitive to contaminants in both the fuel and oxidant streams. Among these, ethylene (C2H4) is of particular interest due to its presence in industrial and warehouse environments. This study investigates the impact of ethylene contamination on PEMFC performance when introduced into the cathode air feed. A combination of fuel cell performance testing, cyclic voltammetry, and gas chromatography is used to analyze the interaction of ethylene with the cathode catalyst. The presence of 20–300 ppm ethylene in air causes an immediate drop in the fuel cell operating voltage that is quickly recovered once the contaminant is removed, suggesting a reversible adsorption mechanism on the surface of the platinum cathode electrocatalyst, rather than the formation of strongly bound oxidation intermediates. Additionally, the study explores mitigation strategies by evaluating conventional and chemically modified air filters. While commercial air filters prove ineffective, a carbon supported platinum (Pt/Vulcan)-coated filter demonstrates partial ethylene removal, reducing performance losses. These findings provide critical insights into ethylene contamination mechanisms and offer potential mitigation strategies to improve PEMFC reliability in real-world applications.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 14","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microbial Electrosynthesis for Sustainable Polyhydroxybutyrate Production from CO2 Using Bismuth Nanoparticles 利用纳米铋纳米颗粒从CO2中可持续地电合成聚羟基丁酸盐

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-06-16 DOI: 10.1002/celc.202500094

Aliyah Aliyah, Filemon Jalu Nusantara Putra, Hiro Minamimoto, Yutaro Mori, Prihardi Kahar, Muhammad Iqbal Syauqi, Chiaki Ogino

{"title":"Microbial Electrosynthesis for Sustainable Polyhydroxybutyrate Production from CO2 Using Bismuth Nanoparticles","authors":"Aliyah Aliyah, Filemon Jalu Nusantara Putra, Hiro Minamimoto, Yutaro Mori, Prihardi Kahar, Muhammad Iqbal Syauqi, Chiaki Ogino","doi":"10.1002/celc.202500094","DOIUrl":"https://doi.org/10.1002/celc.202500094","url":null,"abstract":"Microbial electrochemical technologies (MET) are a promising approach that integrates electrochemical and microbial processes to convert CO2 into value-added chemicals. Herein, Cupriavidus necator is utilized to produce polyhydroxybutyrate (PHB) using electrochemically synthesized formate as the sole carbon source. Formate is generated via CO2 reduction using a Bi-based electrode in a physiological electrolyte, achieving concentrations of ≈40 mM with a production rate of 0.05 mmol h−1 cm−2 and the highest faradaic efficiency achieved up to 50.81%. Two MET configurations are evaluated: an integrated system, where CO2 reduction and fermentation occur in a single reactor, and a drop-in system, where electrochemically produced formate is collected and later is used for fermentation. The drop-in system achieves the highest PHB production, reaching ≈340 mg L−1 within 24 h. By directly utilizing the formate-containing electrolyte as a fermentation medium, this approach simplifies process integration, reduces purification steps, and improves compatibility between electrochemical and microbial systems. These findings highlight the potential of MET as a scalable platform for sustainable biopolymer production from CO2.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 14","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0